1311300211 has 8 divisors (see below), whose sum is σ = 1414887264. Its totient is φ = 1208101440.

The previous prime is 1311300191. The next prime is 1311300227. The reversal of 1311300211 is 1120031131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1311300211 - 2²¹ = 1309203059 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1311300191 and 1311300200.

It is not an unprimeable number, because it can be changed into a prime (1311300811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90031 + ... + 103576.

It is an arithmetic number, because the mean of its divisors is an integer number (176860908).

Almost surely, 2^1311300211 is an apocalyptic number.

1311300211 is a deficient number, since it is larger than the sum of its proper divisors (103587053).

1311300211 is a wasteful number, since it uses less digits than its factorization.

1311300211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194141.

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 1311300211 is about 36211.8794182241. The cubic root of 1311300211 is about 1094.5460642867.

Adding to 1311300211 its reverse (1120031131), we get a palindrome (2431331342).

The spelling of 1311300211 in words is "one billion, three hundred eleven million, three hundred thousand, two hundred eleven".